STVD901J ® VARICAP FEATURES AND BENEFITS n n n High capacitance ratio Tuned for 900 Mhz band in mobile phone Surface mount device A DESCRIPTION The STDV901J is a variable capacitance diode in SOD-323 package. This diode is intended to be used in mobile phone application to control the VCO frequency. 47 K SOD-323 ABSOLUTE RATINGS (limiting values) Symbol Parameter Value Unit VR Continuous reverse voltage 6 V IF Continuous forward current 20 mA Tstg Storage temperature range - 65 to +150 °C Tj Maximum junction temperature 150 °C TL Maximum temperature for soldering 260 °C January 2003 - Ed: 2 1/4 STVD901J STATIC ELECTRICAL CHARACTERISTICS (Tj = 25°C otherwise specified) Symbol IR Parameter Tests Conditions Continuous reverse current Min. Typ. Max. Unit 10 nA VR = 6V THERMAL RESISTANCE Symbol Rth (j-a) Parameter Value Unit 500 °C/W Junction to ambient ELECTRICAL CHARACTERISTICS Symbol Parameter Tests Conditions Ct Diode capacitance VR = 0.25 V f = 1 MHz rf Diode series resistance VR = 1V f = 100 MHz Ls Series inductance Cd (0.25 V) / Cd (2.7 V) Capacitance ratio f = 1 MHz Fig. 1: Reverse leakage current versus reverse voltage applied (typical values). Min. Typ. Max. Unit 3.6 4 4.4 pF 0.5 Ohm 1.5 nH 2 Fig. 2: Relative variation of reverse leakage current versus junction temperature (typical values). IR(µA) IR[Tj] / IR[Tj=25°C) 1.E+01 1.E+04 VR=6V Tj=125°C Tj=100°C 1.E+00 1.E+03 Tj=75°C 1.E-01 1.E+02 1.E+01 1.E-02 Tj=25°C Tj(°C) VR(V) 1.E+00 1.E-03 0.0 2/4 2.0 4.0 6.0 8.0 10.0 25 50 75 100 125 STVD901J Fig. 3: Junction capacitance versus reverse voltage applied (typical values). Fig. 4: Relative variation of junction capacitance versus junction temperature (typical values). C(pF) C[Tj] / C [Tj=25°C] 6.0 1.10 F=1MHz VOSC=30mVRMS Tj=25°C 5.0 F=1MHz VOSC=30mVRMS 1.08 1.06 4.0 1.04 VR=2.7V 1.02 3.0 1.00 0.98 2.0 VR=0.25V 0.96 1.0 VR=0V 0.94 VR(V) Tj(°C) 0.92 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 -40 5.0 Fig. 5: Serie resistance versus reverse voltage applied (typical values). -20 0 20 40 60 80 100 120 140 Fig. 6: Thermal resistance junction to ambient versus copper surface under each lead (printed circuit board, epoxy FR4, Cu=35µm). Rs(Ω) Rth(j-a)(°C/W) 600 10 F=100MHz VOSC=100mVRMS Tj=25°C 550 500 450 1 400 350 S(mm2) VR(V) 300 0 0.1 1.0 10.0 0 5 10 15 20 25 30 35 40 45 50 Fig. 7: PSpice parameters. Diode parameters Parameters Value Unit Is 1.892e-8 A N 1.256 Rs 0.62 Ω Isr 8.090e-10 A Cjo 5.178e-12 F M 0.638 Vj 0.487 Ls = 1.5nH * V All others available parameters are set to default. * Ls depends on package; this value is for SOD-323. 3/4 STVD901J PACKAGE MECHANICAL DATA SOD-323 DIMENSIONS H A1 REF. b Millimeters Min. A E A D c Q1 L Max. Inches Min. Max. 1.17 0.046 A1 0 0.1 0 0.004 b 0.25 0.44 0.01 0.017 c 0.1 0.25 0.004 0.01 D 1.52 1.8 0.06 0.071 E 1.11 1.45 0.044 0.057 H 2.3 2.7 0.09 0.106 L 0.1 0.46 0.004 0.02 Q1 0.1 0.41 0.004 0.016 MARKING Type Marking Package Weight Base qty Delivery mode STVD901J 47 SOD-323 0.005g 3000 Tape & reel Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics © 2003 STMicroelectronics - Printed in Italy - All rights reserved. STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Singapore Spain - Sweden - Switzerland - United Kingdom - United States. http://www.st.com 4/4